The 2018 Ram 2500, powered by the robust 6.7L Cummins turbo diesel engine, has earned a strong reputation among truck owners for its exceptional towing capabilities, impressive torque output, and long-lasting reliability. Built to handle demanding workloads and challenging environments, it has become a top choice for those in agriculture, construction, heavy-duty hauling, and performance enthusiast circles. Despite its stock performance, many experienced diesel owners choose to enhance the truck’s overall efficiency and longevity by addressing factory-installed emissions systems—specifically the Exhaust Gas Recirculation (EGR) system and the Diesel Particulate Filter (DPF).
However, it is critical to recognize that deleting emissions systems is not a simple bolt-on modification. It involves mechanical, electronic, and regulatory considerations. The decision to remove EGR and DPF components should be informed by a thorough understanding of the vehicle’s design, the necessary tools and kits involved, and the potential legal implications of emissions alterations. In the following article, we outline and explain seven key factors every 2018 Ram 2500 owner must be fully aware of before proceeding with an EGR and DPF delete. From understanding system functions and benefits to legal risks and required equipment, this guide provides a comprehensive overview to help you make a safe, effective, and well-informed decision.
Understand What the EGR and DPF Systems Do
Before making any decisions about modifying your truck, it is critical to fully understand the role and purpose of the EGR and DPF systems in your 2018 Ram 2500. The Exhaust Gas Recirculation (EGR) system is designed to reduce nitrogen oxide (NOx) emissions by recirculating a controlled portion of exhaust gases back into the engine’s intake. This process lowers combustion temperatures, which helps meet stringent emissions regulations. However, one of the side effects is that it introduces soot and carbon-laden gases into the intake system. Over time, this can lead to heavy carbon buildup inside the intake manifold, reducing airflow and overall engine efficiency.
The Diesel Particulate Filter (DPF), on the other hand, traps and stores fine soot particles produced during combustion. These particulates are periodically burned off through a high-temperature process known as regeneration. While the DPF significantly reduces emissions, it can become a performance bottleneck—especially if the truck is frequently used for short trips or light-duty driving, which disrupts proper regeneration cycles. When clogged, the DPF may trigger warning lights, limit power output, and even force the engine into limp mode, leading many owners to consider deletion as a performance and reliability upgrade.
Legal Implications and EPA Compliance
One of the most important considerations before removing the EGR or DPF is legal compliance. In the United States, it is illegal to remove or tamper with any emissions-control devices on vehicles intended for on-road use. The Environmental Protection Agency (EPA) and local state regulators impose steep fines for non-compliance, even for individual vehicle owners.
That said, delete kits are sold and marketed for off-road or competition use only. If your truck is exclusively used for racing, agricultural work, or on private property, it may qualify for off-road exemption. However, always check local laws and consult with a compliance specialist before proceeding.
Components Required for a Complete Delete
A proper EGR and DPF delete requires multiple components working in conjunction. Simply removing one system without the other can trigger error codes, limp mode, or reduced functionality. Here is what you will need for a complete delete on your 2018 Ram 2500:
DPF Delete Pipe or Turbo-Back Exhaust: This replaces the DPF section and provides a straight-through exhaust for better flow.
EGR Delete Kit: Includes block-off plates, coolant reroute lines, and fittings to remove the EGR valve and cooler.
Tuning Device: You will need a tuner to recalibrate the Engine Control Module (ECM) to recognize the absence of emissions systems.
DEF System Delete (Optional): If you want to remove the Diesel Exhaust Fluid system, additional programming and hardware changes are required.
Installation Tools or Shop Assistance: Professional installation ensures correct fitment and optimal performance.
If you are looking for a trusted all-in-one solution, the DynoVox EGR & DPF Delete Kit for 2013–2018 Cummins 6.7L offers a reliable and performance-driven package with essential hardware and tuning support.
Expected Horsepower and Torque Gains
One of the main motivations behind EGR and DPF removal is to unlock additional horsepower and torque. By eliminating exhaust flow restrictions and soot reintroduction, your engine can breathe more freely and burn fuel more efficiently.
With proper tuning and supporting modifications, many 2018 Ram 2500 owners report horsepower gains between 80 to 120 horsepower and torque increases of 150 to 250 lb-ft. The final output depends on the quality of tuning, injector health, turbo upgrades (if any), and overall vehicle condition.
These performance improvements lead to stronger towing capabilities, faster throttle response, and smoother power delivery, especially under load.
Improved Fuel Efficiency and Engine Longevity
In addition to performance enhancements, removing the EGR and DPF can significantly improve fuel efficiency. Since the engine no longer burns extra fuel for regeneration or recirculates hot exhaust gases, it runs cleaner and cooler.
Many users report a gain of 2 to 5 MPG, especially on highway drives or during towing operations. Lower EGTs (exhaust gas temperatures) also contribute to reduced thermal stress on engine components, resulting in longer engine life, fewer clogged components, and decreased oil contamination.
Risks of Improper Deletion
While the benefits are considerable, improper or incomplete deletion can lead to costly issues. Without professional tuning, the truck may go into limp mode or throw persistent error codes. Moreover, cheap or poorly designed delete kits can cause exhaust leaks, coolant issues, or premature component failure.
It is crucial to use high-quality parts and work with experienced diesel performance professionals to ensure that the job is done correctly. DynoVox delete kits are engineered for durability and come with precision-fit components to ensure optimal results and compatibility.
Maintenance After Deleting
After completing a delete, your truck’s maintenance schedule will change slightly. While you will no longer need to service EGR or DPF systems, other components require attention:
Oil Changes: Use high-quality synthetic oil and change it more frequently due to increased soot levels in deleted engines.
Turbo and Exhaust Checks: Monitor for leaks or signs of overheating.
Tuning Updates: Make sure your ECM programming remains up to date if new upgrades are added.
Regular monitoring of engine vitals via a digital gauge or OBD tool is also recommended to catch any issues early.
Conclusion
EGR and DPF removal on your 2018 Ram 2500 can unlock significant performance benefits, including increased horsepower, improved fuel efficiency, and longer engine life. However, these benefits come with legal, technical, and mechanical considerations that must not be overlooked.
By investing in a high-quality delete kit—such as the DynoVox system tailored for the 2013–2018 Cummins platform—and ensuring professional tuning, you can enjoy a smoother, stronger, and more responsive driving experience. Always do your due diligence and make informed decisions, especially regarding emissions compliance in your jurisdiction.
